Peter KreftingIf a #Commodore64 starts up with an Out Of Memory error, that's probably not a good sign.
root42@root42 Long board, this is an early model, they stopped selling Swedish C64s when Handic went out of business, IIRC.
@root42 I need to read up on chips to see which one is which.
I don't know the history of this unit, I think my father received it as broken from someone.
@nafmo they are not μT RAMs. That’s good. Could also be the PLA, Muktiplexers or something else. Needs more analysis, maybe test with DesTestMax and DeadTest /DiagROM.
@root42 Can any of the diagnostics cartridges be flashed onto a Retro Replay?
It can boot into the Retro Replay cart. With that I can get it to boot into BASIC with "38911 bytes free", but FRE(.) now reports -26627.
@root42 It was a wild chance, I got a Retro Replay when those were new and hot (this stuff has been sitting in storage since 2006…), so that's what I have to work with.
Maybe I should just keep it as a donor for a SID to a future 64 Ultimate?
@nafmo No! It can be fixed and MUST be fixed. :)
SID replacements are cheap and plentiful. These quirky machines are not.
SID replacements are cheap and plentiful. These quirky machines are not.
@root42 *If* I can find a diagnostics cartridge that I can flash to the RR, I'll have a go at that.
I'm a software engineer, not a hardware one. I'm horrible at fixing hardware. 🙂
@root42 For reference: I used FMGPUCCRBRR from https://csdb.dk/release/?id=39383 to create a cartridge image that I flashed on the RR.
The boot menu doesn't display on the broken C64, but the programs do start.
@root42 I don't think so.
https://gitlab.icomp.de/c64-dev/replay/-/tree/main/flashutility?ref_type=heads is the closest I have to documentation.
Looking at the old files I have, I bought this in 2000 or 2001 :-)
(EDIT: It was released late 2001)
@root42 It can run anything that runs on Action Replay hardware, since that is what it was set out to emulate.
(I grew up with a TFC3, so I never quite did get along with it)